Stainless steel explosion vent BESS.Q.Vent

surface mountedflameless

Overview
REMBE® BESS.Q.Vent is the industry’s first flameless vent designed specifically for Battery Energy Storage Systems (BESS). The device extinguishes flame propagation and significantly reduces external temperatures and pressure effects, enabling safer protection for indoor and outdoor BESS installations. It is suitable for mounting on BESS roofs or side walls.

Application
BESS.Q.Vent is intended for BESS installations where an open flame discharge and high external overpressures are unacceptable—such as sensitive indoor environments, containerised storage sites and stacked container layouts.

Advantages

• Flame absorption and extinguishment to prevent external ignition.
• Reduced required safety area compared with conventional venting.
• Mountable on BESS side walls or roofs for flexible installation.
• Uniquely slim profile integrates with container walls and allows container stacking.
• Maintenance-free design to minimise operational overhead.
• Reduction of external explosion pressures and thermal impact.
• Enables indoor installation of BESS by mitigating flame and pressure effects.

Mechanism
A special stainless steel mesh filter dissipates heat from hot combustion gases and flames, causing rapid flame extinction and additional cooling of the expelled gases. This process substantially lowers both external temperatures and pressure peaks during an event.

Technical data
Burst pressure Pstat: 25-100 mbar
Max. permitted operating pressure: 50% of Pstat
Temperature range: –40 to +180 °C (–40 to +356 °F)
Material: Stainless steel
Gasket material: FDA‑approved silicone gasket
Tolerance: ±20% at standard burst pressure
Recommended torque for M10 screws: 20 Nm
Insulation: FEF
Fire rating of insulation: UL 94 V-0
Insulation thickness: 25-100 mm
Insulation thermal conductivity: λ = 0.035 W/m*K

Applications / Industries

• Battery Energy Storage Systems (BESS)

Certifications

• Meets the requirements of NFPA 68
• SIL‑Equivalent: SIL 4

Characteristics / Technical specifications

• Burst pressure Pstat: 25-100 mbar
• Max. permitted operating pressure: 50% of Pstat
• Operating temperature range: –40 to +180 °C (–40 to +356 °F)
• Material: Stainless steel
• Gasket: FDA‑approved silicone gasket
• Tolerance: ±20% at Pstat
• Recommended torque (M10 screws): 20 Nm
• Insulation type: FEF
• Fire rating: UL 94 V-0
• Insulation thickness: 25-100 mm
• Insulation thermal conductivity: λ = 0.035 W/m*K